Portable calculating machine



FIG. 1 is a perspective view of a first embodiment of a portable calculating machine showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a perspective view of a second embodiment of the portable calculating machine;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a right side elevational view thereof, the left side being a mirror image of the right side shown; and

FIG. 10 is a rear elevational view thereof.

FIG. 11 is a bottom view of the first and second embodiments of the portable calculating machine. 

The ornamental design for a portable calculating machine, as shown and described. 